The answer of course is that they did not. UHL researchers properly translated the inscription on the ossuary as "Simon bar Zilla". Peterson relied on Bellarmino Bagatti 's translation. But according to the UHL when it came to Bagetti "not a single letter was read correctly".
So, read the article, it is very clear and concise. Once again, the anti-catholics are proved wrong. Which once again leads me to ask:
If they cannot be trusted to tell the truth about Catholicism, why should I trust them to tell the truth about Jesus?